21Sc
过渡金属
钪 Sc
Scandium
物态与数值
- 物态
- 固态
- 周期／族
- 4／3
- 相对原子质量
- 44.9559085 （不是质量数）
- 原始密度
- 2.985 g/cm3
- 归一化密度
- 2.985 g/cm³
- 来源熔点字段
- 1814.0 K（部分来源实际为三相点，教学前需核对条件）
- 来源沸点字段
- 3109.0 K
部分超重元素属性为预测值，不能当作已审实验值。氢原始气体密度单位与归一化单位不同，均保留展示。
英文来源解释
中文翻译待补。
Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been sometimes classified as a rare earth element, together with yttrium and the lanthanoids. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia.
出处、中文名称与原始字段
- 来源位置
- multisubject/elements/raw/PeriodicTableJSON.json#/elements/20
- 原记录摘要
- 05e478cb1192c5bbfad8d9600fd3b4c7902c0966ad5d0408bfcc4d5092424c0d
- boil
- 3109
- melt
- 1814
- name
- Scandium
- xpos
- 3
- ypos
- 4
- block
- d
- group
- 3
- image
- {'url': 'https://upload.wikimedia.org/wikipedia/commons/f/f5/Scandium%2C_Sc.jpg', 'title': 'Crystal of Scandium. About 1g', 'attribution': 'JanDerChemiker, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons'}
- phase
- Solid
- wxpos
- 17
- wypos
- 4
- number
- 21
- period
- 4
- shells
- [2, 8, 9, 2]
- source
- https://en.wikipedia.org/wiki/Scandium
- symbol
- Sc
- cpk-hex
- e6e6e6
- density
- 2.985
- summary
- Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been sometimes classified as a rare earth element, together with yttrium and the lanthanoids. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia.
- category
- transition metal
- named_by
- 未知
- appearance
- silvery white
- molar_heat
- 25.52
- atomic_mass
- 44.9559085
- atomic_radii
- {'metallic': [162], 'empirical': [160], 'calculated': [184], 'van_der_waals': [211], 'covalent_single': [148], 'covalent_triple': [114]}
- density_unit
- g/cm3
- spectral_img
- 未知
- bohr_model_3d
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_021_scandium/element_021_scandium.glb
- density_g_cm3
- 2.985
- discovered_by
- Lars Fredrik Nilson
- bohr_model_image
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_021_scandium/element_021_scandium_srp_th.png
- electron_affinity
- 18
- ionization_energies
- [633.1, 1235, 2388.6, 7090.6, 8843, 10679, 13310, 15250, 17370, 21726, 24102, 66320, 73010, 80160, 89490, 97400, 105600, 117000, 124270, 547530, 582163]
- electron_configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d1
- electronegativity_pauling
- 1.36
- electron_configuration_semantic
- [Ar] 3d1 4s2